An integrative approach to a revision of the freshwater mussel genus Songkhlanaia (Bivalvia, Unionidae), with the description of a new species

ZooKeys, Journal Year: 2025, Volume and Issue: 1224, P. 187 - 209

Published: Jan. 28, 2025

Mainland Southeast Asia, also known as Indochina, is recognized a global biodiversity hotspot for freshwater mussels, hosting significant number of species and exhibiting high levels endemism. Recently, the monotypic genus Songkhlanaia was described from Songkhla Lake Basin in southern Thailand. In this study, two additional lineages are revealed, S.moreleti comb. nov. S.songkhramensis sp. nov., Mekong through an integrative taxonomic approach combining morphological characters molecular phylogenetic analyses. The multi-locus inference supported monophyly further elucidated sister relationship between new species, with S.tamodienica positioned basal lineage. Pairwise uncorrected COI p-distances among these three validity ranged 4.2% to 8.24%. Notably, exhibit similarities shell morphology; however, can be differentiated by more robust pseudocardinal teeth. Both distinguishable their approximately twice larger size, inflated shells, prominent, roughened, irregular growth lines on surface. Furthermore, based current data, endemic restricted disjunct biogeographic areas Indochina: Thailand, Tonle Sap Lower basins, Songkhram its nearby tributaries Middle Basin.

Language: Английский

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Phylogeny and diversification analyses of extant planthopper families (Hemiptera: Fulgoromorpha) based on a mitochondrial dataset reveal ancient lineages originating during the Jurassic and originally feeding on gymnosperms

Insect Systematics and Diversity, Journal Year: 2024, Volume and Issue: 8(4)

Published: July 1, 2024

Abstract Phylogenetic analyses of planthoppers were conducted using a mitogenome dataset to examine the evolutionary relationships current families based on both maximum likelihood (ML) and Bayesian inference methods. Delphacoidea, including Cixiidae Delphacidae, Fulgoroidea, all other families, consistently identified as monophyletic groups. However, Nogodinidae displayed polyphyletic pattern, with various lineages emerging sister several issidoid families. Variations observed across different in positioning (Dictyopharidae + Fulgoridae) Ricaniidae either Issidae or (Flatidae Acanaloniidae). Several statistical tests indicate that ML topology has highest level confidence. The clade is best positioned (Derbidae (Achilidae (Tropiduchidae “higher” families))) With 13 fossil calibration points, origin times for Delphacoidea Fulgoroidea dated back Late Permian, approximately 257.46 million years ago. Delphacidae split during Triassic, while diversified earlier Middle Triassic. Divergence diversification are also provided extant planthopper These results suggest likely diverged from older prior emergence angiosperms may have initially fed gymnosperms ancient ferns. occurred Jurassic Cretaceous periods, influenced by evolving climatic conditions, decline gymnosperms, increasing diversity angiosperm plants.

Language: Английский

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Origin of the only myrmecomorphic stink bug, Pentamyrmex spinosus (Hemiptera: Pentatomidae), in the radiation era of ants (Hymenoptera: Formicidae)

Systematic Entomology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Abstract Myrmecomorphy is the most common type of Batesian mimicry in arthropods. In true bugs (Insecta: Hemiptera: Heteroptera), myrmecomorphy has been recorded at least seven superfamilies, but not among stink (Pentatomoidea) until 2014. The only known species that exhibits a high degree during both adult and nymphal stages within this group, Pentamyrmex spinosus , was reported based on single specimen, yet little beyond its morphological description. study, biology as living bamboo (Poaceae: Bambusoideae), close proximity with highly similar ant species, Polyrhachis dives (Hymenoptera: Formicidae). Further, phylogenetic position origin time bug were inferred context Pentatomoidea. dated phylogeny indicates sister group Phyllocephalinae, specialized grass‐feeding subfamily Pentatomidae, diverged about 42.7 Ma (52.6–33.2 Ma), roughly synchronous radiation crown ants (42.0–33.0 Ma) slightly after early bamboos (66.9–24.9 Ma). Our results suggest myrmecomorphic probably driven by rapid diversification spiny bamboo. addition, our also provide reference framework for taxonomic systems Pentatomoidea Pentatomidae.

Language: Английский

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Contribution to the Knowledge of Dicranoptychini (Diptera, Tipuloidea, Limoniidae) in China, with the First Mitochondrial Genome of the Tribe and Its Phylogenetic Implications

Insects, Journal Year: 2023, Volume and Issue: 14(6), P. 535 - 535

Published: June 7, 2023

Dicranoptychini is a tribe in the subfamily Limoniinae (Diptera, Tipuloidea, and Limoniidae) includes only genus Dicranoptycha Osten Sacken, 1860. However, species diversity of China was seriously underestimated, taxonomic status has long been controversial. In this study, types Chinese specimens collected from several localities were examined, first mitochondrial (mt) genome presented. Two species, D. jiufengshana sp. nov. shandongensis nov., China, are described illustrated as new to science. A Palaearctic prolongata Alexander, 1938, recorded for time. addition, complete mt sequenced annotated, indicating that it typical circular DNA molecule with length 16,157 bp shows similar gene order, nucleotide composition, codon usage genomes other Tipuloidea species. The two pairs repeat elements found its control region. Phylogenetic results confirm sister-group relationship between Cylindrotomidae Tipulidae, question position Epiphragma 1860 Limoniidae, indicate may be basal lineage within Limoniinae.

Language: Английский

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Phylogenetic analysis of Phloeidae Amyot & Serville, 1843 (Hemiptera: Heteroptera: Pentatomomorpha: Pentatomoidea) and its position in the superfamily Pentatomoidea, based on morphological studies

Published: Feb. 20, 2024

The family Phloeidae, a.k.a.Neotropical bark bugs, is one of the less speciose families Pentatomoidea, with three species included in two genera, Phloea Spinola and Phloeophana Kirkaldy.Distributed Neotropics, these bugs are recognized by large size, flattened body, presence foliaceous expansions throughout eyes divided into dorsal ventral portions, cryptic coloration, camouflaging themselves barks trees.Despite their larger identity not well delimited, distribution sparsely known, relationships other Pentatomoidea still unknown.Besides that, some authors debate wether enigmatic genus Serbana Distant, described from Borneo, should be Phloeidae or not.In this dissertation, we present a morphological review Neotropics (considering Phloeophana), providing new diagnoses for family, genera species, an identification key adults nymphs describing chromatic variation subquadrata Spinola.We also literature synonymic lists updated maps, including unpublished data collection specimens citizen science platforms.We performed phylogenetic analysis using approach to investigate main questions: between pentatomoids, not.A matrix 123 revised characters was assembled, 71 12 were our analyses.Photographic documentation provided most characters.Our results corroborated that as sister group + Phloeophana.The share many synapomorphies, which discussed study.Our dubious regarding (including Serbana), suggesting distinct hypotheses: relationship Scutelleridae, clade Scuteleridae four families.Finally, briefly discuss incongruence recent molecular evidence supporting part Pentatomidae, possible convergences explanation incongruences found.

Language: Английский

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Skimming the skaters: genome skimming improves phylogenetic resolution of Halobatinae (Hemiptera: Gerridae)

Insect Systematics and Diversity, Journal Year: 2024, Volume and Issue: 8(4)

Published: July 1, 2024

Abstract Gerromorpha Popov, 1971 is a fascinating and diverse insect lineage that evolved about 200 Mya to spend their entire life cycle on the air–water interface have since colonized all types of aquatic habitats. The subfamily Halobatinae Bianchi, 1896 particularly interesting because some species adapted open ocean—a habitat where insects are very rarely found. Several attempts been made reconstruct phylogenetic hypotheses this subfamily, but use few partial gene sequences recovered only handful well-supported relationships, thus limiting evolutionary inferences. Fortunately, emergence high-throughput sequencing technologies has enabled recovery more genetic markers for inference. We applied genome skimming obtain mitochondrial nuclear genes from low-coverage whole-genome 85 specimens reconstructing phylogeny, with particular emphasis Halobatinae. Our study confirmed Metrocorini Matsuda, 1960, paraphyletic, whereas Esakia Lundblad, 1933, Ventidius Distant, 1910, closely related Halobatini 1896, than Metrocoris Mayr, 1865, Eurymetra Esaki, 1926. also found paraphyletic in need taxonomic revision. Ancestral state reconstruction suggests progressively limnic coastal habitats, eventually attaining marine lifestyle, especially genus Halobates Eschscholtz, 1822, oceanic lifestyle thrice. results demonstrate powerful straightforward approach recover loci robust analysis non-model insects.

Language: Английский

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Discovery of the fossil true bug species Urochela (Urochela) cf. melaina Zhang, 1989 (Hemiptera: Heteroptera: Urostylididae) from Japan, suggesting a wide distribution of the U. (U.) quadrinotata (Reuter, 1881) species group in East Asia in the past

Zootaxa, Journal Year: 2024, Volume and Issue: 5507(4), P. 589 - 596

Published: Sept. 15, 2024

The Early Miocene lacustrine deposit (24.1 ± 2.4 Ma) of Sado Island, Niigata Prefecture, has preserved the fossil fauna time when Palaearctic realm Japan was a part Eurasian Continent. In this study, we report specimen family Urostylididae Dallas, 1851 (Hemiptera: Heteroptera: Pentatomomorpha: Pentatomoidea) from as Urochela (Urochela) cf. melaina Zhang, 1989 (Urostylidini), which belongs to U. (U.) quadrinotata species group. This discovery suggests that group, is monophyletic in molecular phylogenetic analyses previous originated before and group widely distributed East Asia past.

Language: Английский

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First formal record of the feeding habits of Saileriolidae (Hemiptera, Heteroptera, Pentatomomorpha, Pentatomoidea), with redescription of Bannacoris hyalinus (Schaefer & Ashlock, 1970), comb. nov. endemic to Vietnam

ZooKeys, Journal Year: 2024, Volume and Issue: 1221, P. 363 - 375

Published: Dec. 31, 2024

In the present study, rare true bug Bannacoris hyalinus (Schaefer & Ashlock, 1970), comb. nov. (Hemiptera, Heteroptera, Pentatomomorpha, Pentatomoidea, Saileriolidae), which is endemic to Vietnam, redescribed and transferred from genus Saileriola China Slater, 1956 Hsiao, 1964 based on morphological characteristics. Adults nymphs of this species congregate in groups several individuals suck sap abaxial side leaves Litsea sp. (Lauraceae). They cause visible feeding damage adaxial leaves, similar that caused by members heteropteran family Tingidae Laporte, 1832 (Cimicomorpha, Miroidea). The new knowledge B. also represents first formal record habits Saileriolidae 1956. An identification key all four provided.

Language: Английский

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Rediscovery and redescription of Urolabida nilgirica Yang (Hemiptera: Heteroptera: Urostylididae) from India

Journal of Threatened Taxa, Journal Year: 2023, Volume and Issue: 15(4), P. 23123 - 23130

Published: April 26, 2023

Urolabida nilgirica Yang, 1938 is rediscovered and redescribed from India after 85 years since its original description. A brief redescription of this species along with the images live habitus, various diagnostic characters, genitalia are provided.

Language: Английский

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